Fuse-setting machine.



W. SCHWARTZ. FUSE SETTING MACHINE.

APPLICATION FILED JUNE22,1912.

2 SHEETS-SHEBT 1.

Patented Nov. 25, 1913.

COLUMBIA PLANOURAPH c0, WASHINGTON, n. c.

W. SCHWARTZ.

FUSE SETTING MACHINE.

APPLIOATION FILED 111111122, 1912.

Patented Nov. 25, 1913.

2 SHEETS-SHEET 2. 22' fWwwH Z /P a p l LULUIHBIA PLANoarQm-l CO WASHINGTON, n. c

UNITED STATES PATENT ormo WILHE'LM SCHWARTZ, or ESSEN-ON-THE-RUI-IR, GERMANY, ASSIGNOR TO FRIED. KRUPP AKTIENGESELLSCI-IAFT, 0F EssnN-oN-rHE-RTJHR, GERMANY.

FUSE-SETTING MACH I ENE.

invented a certain new and useful Improvement in Fuse-Setting Machines, of which the following is a specification.

jectiles, as for instance would be required by scattered firing against airships.

One embodiment of the invention 1s lllustrated 1n the drawing representing a fuse set-ting machine which in the usual manner is provided with an operating member. mounted to turn inthe housing for the purpose of setting the fuse and shows in Figure 1 an end view of-the fuse setting machine;

Fig. 2 a top view of Fig. 1; Fig. 3 a sect-ion' along line 33 of Fig. 1, seen from the left; Fig. 4 a section, along line 44 of Fig. 3,3 seen from the right, and Fig. 5 a section? idly connected with the housing A. The

spur wheel J has in its middle a studshaft along line 5-5 of Fig. 4c, seen from above.

The fuse setting machine-comprises the usual housing. A wherem are mounted to turn the setting members B and C for the fuse parts,-arranged coaxially, of which the one member B is intended for engaging the adjustable fuse part and the other member C for engaging a part of the fuse body.v For making the connection between the setting members and the corresponding fuse parts latches b and c are provided, actuated in the usual manner by a spring pressure and suitable notches on the fuse are provided for these latches. The setting member B has a toothed gear 6 and the setting gear 6 and the beveled gear E with the toothed gear 0 t The beveled wheel D is fixedly connected with the crank E which forms the actuating member for settlng the fuse. The nave F of the crank F is bell-.

shaped and on its front face closed by a cover plate f which is rigidly connected thereto. The crank F has a projection f see Fig. 2,which has a cone-shaped recess f for a similarly shaped spring-actuated snap Specificationfof Letters Patent.

Application filed June 22, 1912. Serial No. 705,256.

Patented Nov. 25, 1913.

latch a which is situated in the housing A, and intended to hold the crank F yieldingly 1n the position shown on the drawing. l/Vithin the crank nave F is arranged a worm wheel G which is rigidly connected with the bevel wheel E. The worm wheel G engages a self-locking worm H, which This invention relates to-fuse setters and aims to provide a. device which makes it pos- 1 sible to give a series of different settings of slight difference to the fuses in a set of proworm is mounted on a shaft H in the crank nave F The worm gearing H G is intended to give to the setting member O the desired angular position correspondingto the v distance of the detonating point relative to the setting member B. To make it possible to read the distance of the detonating point, a scale 9 see Fig. l, is provided on the disk G made in one piece with the worm wheel G; and a markf inscribed on the edge of a window f cut in the cover-plate f through which 7 window the scale 9 is visible. A spur'wheel J is furthermore provided in the crank nave F which is mounted to turn around an axis which is parallel to the axis of rotat on of the crank F,'and is in mesh with the toothed gear a which latter is .rig-

i whereon two bevel wheels K and K are rigidly connected with each other and so arranged that they are able to be displaced, on the one hand, in the axial direction on the stub shaft 2, and on the other hand are compelled to follow every turning of the spur wheel J and the stub shaft 2' A sleeve M serves to axially displace the bevel wheels K and K which sleeve incloses a contracted part 70 of the hub of the bevel wheel K. This sleeve M is displaceably mounted in an insertion piece f compare Fig. l, which is rigidly connected with the crank nave F and this sleeve has a groove m running at right angle to the direction of displacement. A stud n engages. the groove m which stud is arranged eccent-rically on a shaft N, which shaft is carried in the insertion piece f and is provided with a crank-handle 41?, so that by the turning of the shaft N the sleeve M, and with it the bevel wheels K and K may be displaced in the direction of the axis of rotation of the spur wheel J.

Each of the two bevel wheels K and K is intended to engage in a bevel wheel P mounted to rotate on the insertion piece f and the arrangement of these parts is such that, with the angular position of the crankhandle a as shown in the'drawing and the is in mesh with said bevel wheel P. The

two angular positions of the crank-handle n are indicated by marks f and f visible on the top cover i closing the crank n-ave F Three spur wheels 1?, P and P of different pitch diameters are rigidly connected with the bevel wheel P, which spur wheels are each in mesh with one of the three spur wheels Q, Q and Q}, see Fig. 4, which latter are mounted to turn independently of each other around the same axis as the shaft H The spur wheel Q being in mesh with the spur wheel P is rigidly connected with a follower Q the spur wheel Q} being in mesh with the spur wheel I is rigidly connected with a follower Q and the spur wheel Q being in mesh with the spur wheel P is rigidly connected with a follower Q All of these followers are provided with coupling teeth 9 around their periphery on their front face, see particularly Fig. 5. These concentrically arranged toothed circles are separated from each other by means of narrow rings Q7 therebetween; moreover the outermost one of these toothed circles q, situated on the follow-er Qf", is inclosed by a ring The front faces of the toothed circles g are all situated in the same plane and are covered by a flange k situated onthe shaft H A sliding piece R is mounted on the flange 7L displaceable in the radial direction, which slide piece is provided with a button 1 serving as ahandle. The sliding piece R is actuated by a spring T tending to draw the button 1 toward the axis of rotation of the shaft H The button r being displaceable parallel to the axis of rotation of the shaft H on a spindle T is rigidly connected with a coupling pin 1, adapted to engage with each of the toothed circles Q6, and actuated by a spring T The flange ]L2 of the shaft H is covered by a cap 7L which has a slot 71/ for the spindle r and a knob r on the back of the sliding piece R; the mantle part of this cap also inclosing the polished surface of a rib f on the cover plate P. hen the sliding piece R is situated in its extreme inner position, as shown in Fig. t, the coupling pin 1 will engage in the toothed circle of the inner follower Q and as a consequence the engagement in a great number of different angular positions of the shaft H can be obtained, depending on the number of teeth of the toothed circle 9. As soon as the sliding piece R is pushed outward against the action of the spring T, after the coupling pin 1" has been brought out of engagement with the toothed circle of the follower Q by drawing out the button W, the coupling pin r may thereupon be brought into engagement with the toothed circle of the fol-lower Q} or Q? whereby even a greater number of separate angular positions of the shaft H is attainable. Should now the coupling pin r be in engagement with the toothed circle of one of these two followers, it will, by the pressure of the spring T,

simultaneously lie against the outside of that ring 9 which is situated on the inner side of the toothed circle in question, whereby the sliding piece R is immediately secured in its radial position. This sliding piece R will attain its outer extreme position when the coupling pin 1" stands above the smooth surface of the ringshaped rib f of the cover plate 7. In this position of thesliding piece R, in which it is secured by the ring g the worm shaft H may be rotated independent of the followers Q Q} and Q To indicate the diferent positions which the slide piece B may take up in radial direction, are provided four lines inscribed on the edge of the slot h, namely 71 it, h and it see Fig. 2, and a, mark 1" on the knob 7- and here the marks if and h and h express the positions of the sliding piece R, wherein the coupling pin 7' has arrived in engagement with the toothed circle g of one of the followers Q Q and Q and the mark h expresses the position wherein the coupling pin 1 stands over the smooth surface of the ring-shaped rib f.

In describing the action and the working of the above described fuse setting machine we will start from the position of the different parts represented in the drawings. Supposing to begin with that the projectiles are not to be set for scattered firing. In this case the sliding piece R is so adjusted that the mark 1", Fig. 2,registers with the line h In order to give the setting members B and C the angular position that corresponds to the desired distance of the detona-ting point, the shaft H has then to be turned by means of the button W. This can be done without interference as 'thecoupling pin r in the above mentioned position of the sliding piece R stands over the smooth surface of the ring-shaped rib f of the cover plate 7. The turning of the shaft H is transmitted by means of the worm H to the worm wheel G and thereby also to the disk G which carries the scale g and is built out of one piece with the worm wheel G and also to the toothed wheel E, rigidly connected thereto, and to the setting member C, connected therewith through the toothed circle 0 As now the crank F and with-it also the bevel wheel D, rigidly connected therewith, is heldin position by means of the snap latch a Fig. 2, the setting member B will remain at rest during the rotation of engages the locked bevel wheel D. The turning of the shaft H continues until the division line'of the scale 5/ registers with the mark f see Fig. 1, that correspondsto the desired distance of the detonating point. The setting member C does thereupon take an angular position corresponding to the desired distance of the detonating poin't relative to the setting member B. In order now to set the fuse the projectile is inserted, as indicated in Fig. 3, by the dot and dash lines, into the fuse setting machine, whereupon the. crank F is turned around completely once, after the snap latch va has been brought out of engagement with the cone-shaped recess f by means of a powerful pressure on the crank-handle. Besides the bevel wheel. D, which is rigidly connected with the crank F, also the bevel wheel E will follow in the rotation of the crank F, as the latter is coupled with the crank nave F by means of the self locking worm gearing G 'H. The two setting members B and C will then be turned in opposite direction to each other an angle of 360 relative to the housing A by means of the bevel gearing D (Z and E 0 whereby the fuse will be given the desired setting in well known man ner. During the turning. of the crank F the spur wheel J rolls on the fixed toothed circle a and is hereby turned around its axis The turning of the spur wheel J is transmitted through the bevel gearing K P to the spur wheels P P andP and from them to the spur wheels Q Q and Q as well as to the followers Q Q, and Q so that the followers will revolve with difierent angular velocities, because the spur gearings P Q, P Q and P Q are all geared at diiferent ratio. As, however, in consequence of the before mentioned adjustment of the sliding piece R, the coupling pin r does not engage with any of the toothed circles of the followers, it will follow that with this adjustment the turning of the followers will have no influence on the operation of the machine. Should now scattering firing have to be done at the same range, the sliding piece R will be so adjusted that the coupling pin r engages one of the toothed circles f, for example the toothed circle of the follower Q as shown in Figs. 4 and 5 (after the shaft H if necessary, has simultaneously been rotated a slight amount which is without consequence for the adjustment of the fuse setting machine). The shaft H will in this case follow the turning of the follower Q} when the crank F is turned. In consequence thereof the setting members B and C will have at the end of completion of the setting a somewhat different relative angular position than at the beginning, and

the fuse will therefore be set to a distance of the detonating point that will deviate a certain amount, for instance, 150 meters,

from that indicated on the scale 9 at the beginning of the setting operation. At each following setting operation the then adjusted distance will be automatically changed 150 meters, that is, the set fuses will receive a scattering of 150 meters. Should the sliding piece It beso adjusted that the coupling pin r engages the toothed circle 96 of the follower Q or Q, the consequence would be that the shaft H will turn with different angular velocity than heretofore, because the gears K K P P P P Q Q Q form change speed gears, and that therefore the distances which have been set in several ad justing operations after each other, will change a different amount, for instance an amount of 100 or 30 meters respectively, when it is supposedin accordance with the ratio given in the drawing that the follower Q turns with the greatest angular velocity, the follower Q} with the smallest and the follower Q with a mean angular velocity. Should the crankhandle n be turned 180 out of its angular position indicated in Fig. 2, so that it stands over the mark f the sleeve M will be displaced so far in the direction of the arrow. w, see Fig. 3, that the bevel wheel K will arrive in engagement with the bevel wheel P, while the bevel wheel K will get out of mesh therewith. The fol'- lowers Q Q and Q by the turning of the crank F, must now turn in the opposite direction to what they did heretofore, as the gearings K K P form a change gear, so that by several repeated setting operations the consequent adjustment of the distances will now be diminished the same amount as they were previously supposed to increase for the desired scattering. It will therefore be accomplished that the projectiles in a whole series of projectiles, may be set at widely difierent distances of detonating point, each one differing from the other in scattering, without any further adjustment of the fuse setting machine; as soon as the machine has once been adjusted for a certain distance of detonating point indicated by the mark f of the scale g and also adjusted for a certain scattering; the amount depending on the radial adjustment of the sliding piece R and its direction as regards the position of the crank-handle if.

I claim:

1. A fuse setting device having an adjusting member adapted to change the adjustment of the fuse setting device corresponding to the desired distance of the bursting point; an operating member for setting the fuse and means connecting said adjusting memher with said operating member, whereby the adjusting member is actuated to automatically change the adjustment of the fuse setting device when said operating member is being moved for setting the fuse.

2. A fuse setting'device having an adjusting member adapted to change the adjustment of the fuse setting device corresponding to the desired distance of the bursting point; an operating member for setting the fuse and means connecting said adjusting member with said operating member, said connecting means composing a change speed gear whereby the adjusting member is actuated to automatically change the adjustment of the fuse setting device when said operating member is being moved for setting the fuse.

8. A fuse. setting device having. an adjusting member adapted to change the adjustment of the fuse setting device correspond ing to the desired distance of the bursting point; an operating member for setting the fuse and a change speed gear connecting said adjusting member with said operating member, said change speed gear having a reversing gear, whereby the adjusting member is actuated to automatically change the adjustment of the fuse device when said operating member is being moved for setting the fuse.

l. A fuse setting device having a revoluble adjusting member adapted to change the adjustment of the fuse setting device corresponding to the desired distance of the burst ing point; an operating member for setting the fuse; a plurality of followers coaxially mounted relatively to said adjusting member 1 and positively connected with said operating member to turn with different angular speeds when said operating member is being movedtanda coupling adapted to rigidly connect said adjusting member to either one of said followers.

'5. A fuse setting device having a revoluble adjusting member adapted to change the adjustment of the fuse setting device corresponding to the desired distance of the bursting point an operating member for setting the fuse; a plurality of annular followers of different diameters coaXially mounted relatively to said-adjusting member and positively connected with said operating member to turn with different angular speeds when said operating member is being moved, said followersv being provided with a plurality of radial slots; a latch mounted on said adjust-ing member to slide radially thereon and a spring-actuated stud in the latch adapted to engage any one of said slots; and rings interposed between the adjacent annular followers whereby said latch will be retained radially in engagement with any one of said annular followers.

The foregoing specification signed at Barmen, Germany, this first day of June, 1912.

VVILHELM SCHWARTZ. [n s.]

In presence of- ALBERT NUrnn, HELEN NUFER.

Copies of this patent may be obtained for five cents each, byadd'ress'i-ng the Commissioner of Patents; Washington-D. G2 

